//
// Created by Castle on 2025/10/21.
//


#include <iostream>
#include <ostream>
// Tools
const int Pen { 10 };
const int Marker { 20 };
const int Earser { 30 };
const int Circle { 50 };
const int Ellipse { 60 };

int main() {

    int tool { Marker };
    switch (tool) {
        case Pen: {
            std::cout << "Pen" << std::endl;
        }
        break;

        case Marker: {
            std::cout << "Marker" << std::endl;
        }
        break;

        case Earser: {
            std::cout << "Earser" << std::endl;
        }
        break;

        default: {
            std::cout << "Can't match any tool." << std::endl;
        }

    }

    return 0;
}